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Can you use brass as a dialectric union between copper and black iron pipe?
No, brass cannot be used as a dielectric union between copper and black iron pipe. Dielectric unions are typically made of materials that are not electrically conductive, such as plastic or rubber. Brass is a conductive material and would not provide insulation against galvanic corrosion between copper and black iron pipe.
Can you connect directly DZR brass ball valve with black steel pipe for chilled water without using dielectric coupling. The valve is internal threaded connection?
Connecting a DZR ( dezincification resistant) brass ball valve directly to black steel pipe without a dielectric coupling is not recommended for chilled water applications. The dissimilar metals can lead to galvanic corrosion, potentially compromising the integrity of the connection over time. To ensure longevity and prevent corrosion, it's best to use a dielectric coupling or another form of isolation between the brass valve and the steel pipe.
What is the Difference between a Dielectric Test and a Megger Test?
a megger or hipot test involves raising the voltage of the wiring to 2x the operating voltage + 1000v answer volts/amps or ohms Dielectric test usually a sample of the oil is taken from the transformer answer is in ohm-cm dry devices will have the dielectric tests on file ... this is a very poor excuse ... the code need rewriting. the old standards were based on porcelain, oil, paper and cotton AI MI SWC DWC new types THN THWN THHN SO are generally based on a natural color when the tests are done so if you replace a cord on a drill the white and green wire has insulation that crumbles while the black is still flexable. thermoplastic insulation used for several years in damp locations with DC turns to a sticky goo.
What difference is there between black patent and black PU colour?
black patent is the really shiny one, whereas the black pu is the dull, unshiny looking one
What is the p- type carbon black?
From: http://goliath.ecnext.com/coms2/gi_0199-171383/Carbon-black-measures-up-in.html P-type carbon black is one that satisfies all specifications required for pressure-pipe applications to meet worldwide industry standards:
Do you need dielectric fitting between black iron pipe and stainless steel?
Yes, need one between the two dissimilar metals.
Do need to use dielectric union when you have black pipe to brass fitting?
Brass and steel are compatible, Otherwise we could NOT use brass valves with steel piping.
Can you use brass as a dialectric union between copper and black iron pipe?
No, brass cannot be used as a dielectric union between copper and black iron pipe. Dielectric unions are typically made of materials that are not electrically conductive, such as plastic or rubber. Brass is a conductive material and would not provide insulation against galvanic corrosion between copper and black iron pipe.
Can a 2.5 galvanized dielectric union be used to connect black pipe to copper pipe?
Yes
Can you connect a copper fitting into a cast iron pipe without a dielectric union?
Certainly, if the pipes are kept dry, and don't carry an electrolyte, such as water.Otherwise, it's a bad idea to directly connect different metallic pipes. In fact, most plumbing codes prohibit such a connection.That's because anytime any two dissimilar metals contact each other -- while in the presence of an electrolyte -- whichever metal has the higher electropotential will corrode, through electrolytic action.So, in the case of copper vs iron, the copper side of the joint will eventually fail due to corrosion -- unless you electrically isolate the two metals.You can do this via a dielectric union, or dielectric nipple. Or, you can use a hardened brass fitting, which resists corrosion and also smooths the dielectric potential between the copper and steel.Of course, another author may have a different opinion (like the one below.) So my advice is to understand the 'why' of electrolytic corrosion, so you can determine whether or not, in your case, a dielectric union is advisable.####Of course , NO Problem and there are many ,many options of doing so.The electrolytic conditions happens when connecting ferrous metals to non ferrous metals that contain zinc (galvanized) if you think about it EVERY SINGLE CAST IRON RADIATOR has a brass shut off valve, Most black steel gas line have a BRASS gas valve. Brass bolts are the best way to go when installing CAST IRON ROOF DRAINSAlso why use a dielectric union when there are dielectric nipples less chance of leakage
Can you connect directly DZR brass ball valve with black steel pipe for chilled water without using dielectric coupling. The valve is internal threaded connection?
Connecting a DZR ( dezincification resistant) brass ball valve directly to black steel pipe without a dielectric coupling is not recommended for chilled water applications. The dissimilar metals can lead to galvanic corrosion, potentially compromising the integrity of the connection over time. To ensure longevity and prevent corrosion, it's best to use a dielectric coupling or another form of isolation between the brass valve and the steel pipe.
What is mechanical workshop?
it is the mechanical -carpentry,fitting,black smithy,house wiring,welding
How do you check the oil on a 07 buell blast?
Between the speedometer and the fuel tank, there is a black fitting that you can unscrew by hand. It looks like part of the tank hold-down, but that's actually your dipstick!
Do they make a glue for black plastic pipe and grey bard fitting?
Black plastic pipe is ABS -Use yellow ABS cement. -I don't understand "grey bard fitting" -Take this to your plumbing store and they will advise.Black plastic pipe is ABS -Use yellow ABS cement. -I don't understand "grey bard fitting" -Take this to your plumbing store and they will advise.
What is the GKR karate belt order?
You get your white belt when you first start (No grading session required)Then instructor awards you yellow tip (Again no grading session required)Then yellow (Grading session required)Then orange tip (No grading session required)Then orange (Grading required)Then green ( Grading required )Then blue ( Grading required )Then red (Grading required )Then brown (Grading required)Then black tip (Grading required)A second black tip (Grading required )Then black (Grading required)
What did Jim crow laws mean to black people?
They required segregation in public places between African Americans and others in the United States.
How do you look less fat?
Wear black, loose fitting clothing. Not too loose or it will look sloppy.
